[Study of sex chromatin and polynuclear cells, with special reference to the cytogenetic study on the mentally retarded children].
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D002874:Chromosome Mapping; D005260:Female; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000235:genetics*; D008297:Male; D009061:Mouth Mucosa / Q000166:cytology; D012728:Sex Chromatin / Q000032:analysis*; D012729:Sex Chromosome Aberrations; D012730:Sex Chromosomes / Q000032:analysis*